Hi how to do thank you so much

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primary 6 | Maths | Speed
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primary 6 Maths Speed Singapore

Hi how to do thank you so much

Date Posted: 4 years ago

Let d be the distance from school to library.

Ben's speed - Alan's speed = 90
d/20-d/30=90
3d - 2d=5400
d=5400

Alan's speed =5400/30=180 m/min

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Date Posted: 4 years ago

Joneth Santorcas

4 years ago

Hi , are we able to use simulataneous method

Agnes Tung

4 years ago

Hi. Yes. You can let x and y be the speeds. The first equation 20x=30y and second equation x-y=90 then solve for x and y.

Joneth Santorcas

4 years ago

Thank you so much

Joneth Santorcas

4 years ago

Thank you